A free to play, Multiplayer, Stunt Driving game, with global leaderboards, currently in active development by one person, Stunt Car Online is a playable download racing game powered by Unity 3d.
The game will be a pay-what-you-want model where I humbly ask for players to donate a little money to help support me - mostly paying for the astronomical hosting fee's! - but you never know, getting a unity pro license one day would certainly help performance! :)
Currently there is an online demo of the game, but this is rapidly becoming very out dated as I am no longer updating this version.
Thanks for your time!